1 /* $NetBSD: lpt_acpi.c,v 1.2 2003/01/09 12:23:28 jdolecek Exp $ */ 2 3 /* 4 * Copyright (c) 2002 Jared D. McNeill <jmcneill@invisible.ca> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. The name of the author may not be used to endorse or promote products 13 * derived from this software without specific prior written permission. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 20 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 21 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 22 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 23 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28 #include <sys/cdefs.h> 29 __KERNEL_RCSID(0, "$NetBSD: lpt_acpi.c,v 1.2 2003/01/09 12:23:28 jdolecek Exp $"); 30 31 #include <sys/param.h> 32 #include <sys/systm.h> 33 #include <sys/errno.h> 34 #include <sys/ioctl.h> 35 #include <sys/syslog.h> 36 #include <sys/device.h> 37 #include <sys/proc.h> 38 #include <sys/termios.h> 39 40 #include <machine/bus.h> 41 42 #include <dev/isa/isavar.h> 43 #include <dev/isa/isadmavar.h> 44 45 #include <dev/acpi/acpica.h> 46 #include <dev/acpi/acpireg.h> 47 #include <dev/acpi/acpivar.h> 48 49 #include <dev/ic/lptvar.h> 50 51 int lpt_acpi_match(struct device *, struct cfdata *, void *); 52 void lpt_acpi_attach(struct device *, struct device *, void *); 53 54 struct lpt_acpi_softc { 55 struct lpt_softc sc_lpt; 56 }; 57 58 CFATTACH_DECL(lpt_acpi, sizeof(struct lpt_acpi_softc), lpt_acpi_match, 59 lpt_acpi_attach, NULL, NULL); 60 61 /* 62 * Supported device IDs 63 */ 64 65 static const char * const lpt_acpi_ids[] = { 66 "PNP0400", /* Standard LPT printer port */ 67 "PNP0401", /* ECP printer port */ 68 NULL 69 }; 70 71 /* 72 * lpt_acpi_match: autoconf(9) match routine 73 */ 74 int 75 lpt_acpi_match(struct device *parent, struct cfdata *match, void *aux) 76 { 77 struct acpi_attach_args *aa = aux; 78 const char *id; 79 int i; 80 81 if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE) 82 return 0; 83 84 for (i = 0; (id = lpt_acpi_ids[i]) != NULL; ++i) { 85 if (strcmp(aa->aa_node->ad_devinfo.HardwareId, id) == 0) 86 return 1; 87 } 88 89 /* No matches found */ 90 return 0; 91 } 92 93 /* 94 * lpt_acpi_attach: autoconf(9) attach routine 95 */ 96 void 97 lpt_acpi_attach(struct device *parent, struct device *self, void *aux) 98 { 99 struct lpt_acpi_softc *asc = (struct lpt_acpi_softc *)self; 100 struct lpt_softc *sc = &asc->sc_lpt; 101 struct acpi_attach_args *aa = aux; 102 struct acpi_resources res; 103 struct acpi_io *io; 104 struct acpi_irq *irq; 105 ACPI_STATUS rv; 106 107 printf("\n"); 108 109 /* parse resources */ 110 rv = acpi_resource_parse(&sc->sc_dev, aa->aa_node, &res, 111 &acpi_resource_parse_ops_default); 112 if (rv != AE_OK) { 113 printf("%s: unable to parse resources\n", sc->sc_dev.dv_xname); 114 return; 115 } 116 117 /* find our i/o registers */ 118 io = acpi_res_io(&res, 0); 119 if (io == NULL) { 120 printf("%s: unable to find i/o register resource\n", 121 sc->sc_dev.dv_xname); 122 return; 123 } 124 125 /* find our IRQ */ 126 irq = acpi_res_irq(&res, 0); 127 if (irq == NULL) { 128 printf("%s: unable to find irq resource\n", 129 sc->sc_dev.dv_xname); 130 return; 131 } 132 133 sc->sc_iot = aa->aa_iot; 134 if (bus_space_map(sc->sc_iot, io->ar_base, io->ar_length, 135 0, &sc->sc_ioh)) { 136 printf("%s: can't map i/o space\n", sc->sc_dev.dv_xname); 137 return; 138 } 139 140 lpt_attach_subr(sc); 141 142 sc->sc_ih = isa_intr_establish(aa->aa_ic, irq->ar_irq, 143 (irq->ar_type == ACPI_EDGE_SENSITIVE) ? IST_EDGE : IST_LEVEL, 144 IPL_TTY, lptintr, sc); 145 } 146